Abstract: Methods and systems for managing systems based on power consumption are disclosed. To operate data processing systems, power may be supplied to the systems. Power supply capacity may be provisioned based on the estimated power consumption for the systems. To estimate the power consumption of the systems, limits on the operation of components of the systems may be taken into account. These limits may reduce the power consumption by the components from nominal power consumption ascribed by a manufacturer. The limits may be caused by the communication architecture or other features of the systems.